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Silver rectangular 3.5 inch hard drive with label showing 18TB capacity

MaxDigitalData

MaxDigitalData MDD18TSATA25672E 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive

SKU CH-2BHG-WJ81C

18 TB 3.5-inch SATA drive at 7200 RPM with 256 MB cache, rated for 24×7 operation and 550 TB yearly workload

  • Total capacity18 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Rotational speed7,200 RPM
  • Cache memory256 MB
  • Max height26.1 mm
  • 18TB capacity for hyperscale storage density
  • 7200 RPM and 256MB cache deliver fast data access
  • 0M hours MTBF and 0.44% AFR for 24×7 reliability
  • Rated for 550TB per year enterprise workloads
  • 5-inch SATA 6.0Gb/s form factor fits standard bays

18TB SATA enterprise drive

The MaxDigitalData MDD18TSATA25672E is an 18TB 3.5-inch internal hard drive built for nearline workloads. It runs at 7200 RPM with a 256MB cache and a SATA 6.0Gb/s interface. The drive is rated for 24×7 operation in hyperscale and cloud environments.

Sustained 550 TB per year workload

Enterprise-class firmware supports a 550 TB per year workload rate, far above desktop-class limits. A 2.0M hour MTBF and 0.44% AFR reflect the reliability target for continuous duty. Advanced caching technology helps maintain predictable response times under heavy multi-drive chassis loads.

Replaces lower-capacity nearline drives

The 18TB capacity lets operators consolidate storage and reduce the number of drives required for a given footprint. The jump is worth it when scaling bulk-storage SLAs in space-constrained racks. Buyers who need desktop-class intermittent use or portable external storage should look elsewhere.

How it compares

Measured against everything we stock in 3.5-Inch Internal Desktop HDDs, at today’s prices. Recalculated every night.

Price $387.99
Pricier than about 89% of the 4,938 comparable items (median $107.99).
Total capacity 18 TB
Higher than about 93% of the 2,372 comparable items (median 2 TB).
Price per TB $21.56 per TB
Cheaper than about 91% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameMaxDigtalData
Product lineMDD
Model nameMDD18TSATA25672E
Total capacity18 TB
Performance
Rotational speed7,200 RPM
Storage
Cache memory256 MB
Ports & slots
Interface typeSATA 6.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Max height26.1 mm
Maximum width101.85 mm
Maximum length147 mm

Questions about this item

How loud and hot does the 7200 RPM MDD18TSATA25672E get during continuous 24×7 operation?

The drive is rated for 24×7 use with an MTBF of 2.0M hours and an AFR of 0.44%, supporting enterprise workloads of 550TB per year.

What cables or brackets must I already have to install this 3.5" SATA 6.0Gb/s drive?

It is a bare drive only — no screws, cables or accessories are included, so you need a SATA data cable, a SATA power connector and 3.5" mounting hardware.

Will this 18TB drive work in my older desktop that only supports smaller capacities?

It uses the standard SATA 6.0Gb/s interface and 3.5" form factor, so any system with a SATA port and 3.5" bay can use it; format the drive in the OS for detection.

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